Chemical material conveying system

Abstract

The chemical material conveying system comprises a discharging station module, a draught fan and an absorption tower, the discharging station module comprises a containing chamber, a discharging kettle is arranged in the containing chamber, a chamber door is arranged on the side wall of the containing chamber, the containing chamber can be opened by the chamber door, and people can enter the containing chamber by the aid of the chamber door. The top of the discharging kettle is connected with a first input pipe used for inputting nitrogen into the discharging kettle and an output pipe used for outputting materials in the discharging kettle, the side wall of the containing chamber is further provided with an exhaust pipe capable of exhausting gas in the chamber, and the output end of the exhaust pipe is connected with the air inlet end of a fan. The air outlet end of the fan is connected with the input end of the absorption tower through a pipeline, and a combustible gas detector used for detecting the concentration of combustible gas in the containing chamber is arranged on the inner side wall of the containing chamber. The chemical material conveying system further comprises a control unit which is used for receiving signals of the combustible gas detector and can control the draught fan to be started to extract gas from the containing chamber, when the combustible gas detector detects that the concentration exceeds a preset value, the draught fan can be started in a linkage mode to extract internal gas into the absorption tower to be treated, and therefore the accident rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical material manufacturing, in particular to a chemical material conveying system. Background Art

[0002] In the chemical industry production process, the transportation and handling of materials is one of the most important links, especially for the handling of flammable, explosive or toxic chemical materials, safety and efficiency have become the focus of the industry. Traditional chemical material transportation systems often focus on the automated handling and efficient transmission of materials, but there are deficiencies in ensuring the safety of the operating environment, especially when it comes to operating areas that require personnel to enter. How to effectively control the accumulation of flammable gases and prevent fire and explosion accidents has become an urgent problem to be solved.

[0003] In the past, although the transmission systems were equipped with basic safety facilities, such as local exhaust devices and gas monitoring instruments, these systems often lacked integrated management and emergency response capabilities. For example, the detection instrument may only be installed as an independent safety device, and when it detects that the concentration of dangerous gas exceeds the standard, it cannot immediately trigger the system to take measures to reduce the risk.

[0004] The utility model is made based on the above situation. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a chemical material conveying system which can detect the concentration of combustible gas in a containing room and can start a fan to draw the internal gas into an absorption tower for treatment when the concentration exceeds a preset value, thereby reducing the accident rate.

[0006] The utility model is realized by the following technical solutions:

[0007] A chemical material conveying system comprises a discharge station module, a fan and an absorption tower, wherein the discharge station module comprises a holding chamber, wherein a discharge kettle is arranged in the holding chamber, and a door which can be opened to allow people to enter is arranged on the side wall of the holding chamber, and a first input pipe for inputting nitrogen into the discharge kettle and an output pipe for outputting the material in the discharge kettle are connected to the top of the discharge kettle, and an exhaust pipe which can extract the indoor gas is also arranged on the side wall of the holding chamber, and the output end of the exhaust pipe is connected to the air inlet end of the fan, and the air outlet end of the fan is connected to the input end of the absorption tower through a pipeline, and a combustible gas detector for detecting the concentration of combustible gas in the holding chamber is arranged on the inner wall of the holding chamber, and the chemical material conveying system also comprises a control unit which is used to receive signals from the combustible gas detector and can control the fan to open to exhaust gas from the holding chamber.

[0008] In the chemical material delivery system as described above, the combustible gas detector and the input end of the exhaust pipe are both arranged at the lower part of the side wall of the containing chamber.

[0009] In the chemical material conveying system as described above, a smoke detector and a dry powder automatic fire extinguisher are also provided on the inner top of the containing chamber, the smoke detector is connected to the control unit, and the control unit is connected to the dry powder automatic fire extinguisher.

[0010] In the chemical material conveying system as described above, an HCL detector for detecting the HCL concentration in the air in the accommodation room is provided on the inner side wall of the accommodation room, and the HCL detector is connected to the control unit.

[0011] In the chemical material delivery system as described above, the HCL detector is arranged at the lower part of the side wall of the containing chamber.

[0012] In the chemical material delivery system as described above, an alarm is further provided in the containing chamber, and the alarm is connected to the control unit.

[0013] In the chemical material conveying system as described above, the output end of the output pipe is connected to the hydrolysis kettle and the treatment kettle, and the output pipe is also provided with a first automatic valve for controlling the on-off thereof.

[0014] In the chemical material conveying system as described above, the first input pipe is provided with a second input pipe for inputting nitrogen into the hydrolysis kettle and the treatment kettle, and the second input pipe is also provided with a second automatic valve for controlling the on-off thereof.

[0015] In the chemical material conveying system as described above, the unloading kettle is provided with a first explosion-proof pressure gauge and a first safety valve for detecting the air pressure in the kettle.

[0016] In a chemical material conveying system as described above, a PCV valve and a second explosion-proof pressure gauge are provided on the first input pipe, a connecting pipe is connected to the first input pipe, an output end of the connecting pipe is connected to the input end of the absorption tower, a second safety valve and a third explosion-proof pressure gauge are provided on the connecting pipe, and the third explosion-proof pressure gauge is connected in parallel with the second safety valve.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. A combustible gas detector is installed on the inner wall of the holding room to detect the concentration of combustible gas in the holding room. The sudden increase of the concentration of combustible gas in the holding room is generally caused by the leakage of materials in the unloading kettle. When the combustible gas detector detects that the concentration exceeds the preset value, it can start the fan to draw the internal gas into the absorption tower for treatment, thereby reducing the accident rate.

[0019] 2. Most chemical material gases are denser than air. The combustible gas detector and the input end of the exhaust pipe are both located at the lower part of the side wall of the holding chamber, which can detect the leakage of the unloading kettle more quickly and carry out chain processing more quickly.

[0020] 3. A smoke detector and a dry powder automatic fire extinguisher are also provided on the inner ceiling of the accommodation room. When the smoke detector detects a fire and smoke in the room, the dry powder automatic fire extinguisher can automatically spray dry powder downwards to extinguish the fire.

[0021] 4. An alarm is also installed in the receiving room. When the concentration of the detected gas by the combustible gas detector or smoke detector reaches the preset value, the control unit controls the alarm to issue an early warning so that the staff will know that a fire or leakage has occurred at the unloading station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a system schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the unloading station module in the utility model;

[0025] Figure 3 It is a pipeline schematic diagram of the first input pipe in the utility model. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] like Figures 1 to 3 A chemical material conveying system shown in the figure includes a discharge station module 1, a fan 2 and an absorption tower 30, the discharge station module 1 includes a holding chamber 11, a discharge kettle 12 is arranged in the holding chamber 11, a door 111 which can open the holding chamber 11 for people to enter is arranged on the side wall of the holding chamber 11, a first input pipe 3 for inputting nitrogen into the discharge kettle 12 and an output pipe 4 for outputting the material in the discharge kettle 12 are connected to the top of the discharge kettle 12, an exhaust pipe 5 which can extract the indoor gas is also arranged on the side wall of the holding chamber 11, the output end of the exhaust pipe 5 is connected to the air inlet end of the fan 2, and the air outlet end of the fan 2 is connected to the input end of the absorption tower 30 through a pipeline, a combustible gas detector 6 for detecting the concentration of combustible gas in the holding chamber 11 is arranged on the inner wall of the holding chamber 11, and the chemical material conveying system also includes a control unit 7 for receiving the signal of the combustible gas detector 6 and controlling the fan 2 to start to exhaust the holding chamber 11. The above-mentioned chemical raw materials can be chlorosilane, monosilane or other organic silicon compounds.

[0028] The sudden increase in the concentration of combustible gas in the holding chamber 11 is generally caused by the leakage of materials in the discharge kettle 12. When the combustible gas detector 6 detects that the concentration exceeds the preset value, the fan 2 can be started in a chain to draw the internal gas into the absorption tower 30 for treatment, thereby reducing the accident rate. Among them, when chlorosilane is stored in the discharge kettle 12, the combustible gas detector 6 is a detector that can detect the concentration of chlorosilane. When it is detected that the concentration of chlorosilane exceeds the preset value, the fan 2 can be started in a chain to draw the internal gas into the absorption tower 30 for treatment. The absorption tower 30 can be an acid mist absorption tower. The control unit 7 can be a computer control terminal or an electric control box arranged on the holding chamber 11. The chamber door 111 can be a fireproof rolling shutter door. The first input pipe 3 can transport nitrogen to the discharge kettle 12 by connecting to a nitrogen source. The nitrogen source can be a nitrogen storage device or a nitrogen manufacturing device.

[0029] In one embodiment, the combustible gas detector 6 and the input end of the exhaust pipe 5 are both arranged at the lower part of the side wall of the accommodation chamber 11. The density of chlorosilane is greater than that of air, and it will be deposited at the lower part of the accommodation chamber 11. The combustible gas detector 6 and the input end of the exhaust pipe 5 are both arranged at the lower part of the side wall of the accommodation chamber 11, which can more quickly detect the leakage of the unloading kettle 12 and perform chain processing more quickly.

[0030] In one embodiment, a smoke detector 81 and a dry powder automatic fire extinguisher 82 are also provided on the inner top of the accommodation chamber 11, the smoke detector 81 is connected to the control unit 7, and the control unit 7 is connected to the dry powder automatic fire extinguisher 82. When the smoke detector 81 detects that a fire is ignited and smoke is generated in the room, the dry powder automatic fire extinguisher 82 can automatically spray dry powder downward to extinguish the fire.

[0031] In one embodiment, an HCL detector 83 for detecting the HCL concentration in the air in the accommodation chamber 11 is provided on the inner wall of the accommodation chamber 11, and the HCL detector is connected to the control unit 7. If chlorosilane comes into contact with moisture, whether it is moisture in the atmosphere or moisture in the system, a hydrolysis reaction may occur to generate HCl and corresponding silicon oxides. The HCL detector 83 can be used to detect the HCL concentration in the air to further detect the leakage of the unloading kettle 12.

[0032] The density of HCL gas is greater than that of air. The HCL detector is arranged at the lower part of the side wall of the accommodation chamber 11. The HCL detector 83 arranged at the lower part of the side wall of the accommodation chamber 11 can detect the leakage of the unloading kettle 12 more quickly and perform chain processing more quickly.

[0033] In one embodiment, an alarm 84 is further provided in the accommodation chamber 11, and the alarm 84 is connected to the control unit 7. When the combustible gas detector 6 or the HCL detector 83 or the smoke detector 81 detects that the concentration of the gas reaches a preset value, the control unit 7 controls the alarm 84 to issue an early warning so that the staff knows that a fire or leakage occurs at the unloading station.

[0034] In one embodiment, the output end of the output pipe 4 is connected to the hydrolysis kettle 91 and the treatment kettle 92 , and the output pipe 4 is also provided with a first automatic valve 41 for controlling the on-off thereof. The first automatic valve 41 is connected to the electronic control unit 7 .

[0035] The first input pipe 3 is provided with a second input pipe 31 for inputting nitrogen into the hydrolysis kettle 91 and the treatment kettle 92, and the second input pipe 31 is also provided with a second automatic valve 32 for controlling the on-off thereof. The second automatic valve 32 is connected to the electronic control unit 7. The gas pressure in the hydrolysis kettle 91 and the treatment kettle 92 can be adjusted by inputting nitrogen into the hydrolysis kettle 91 and the treatment kettle 92.

[0036] In one embodiment, the unloading kettle 12 is provided with a first explosion-proof pressure gauge 121 for detecting the air pressure in the kettle and a first safety valve 122. The first explosion-proof pressure gauge 121 may be a PIXA gauge, and the first safety valve 122 may be a PSV gauge.

[0037] In one embodiment, the first input pipe 3 is provided with a PCV valve 33 and a second explosion-proof pressure gauge 34, the first input pipe 3 is connected with a connecting pipe 35, the output end of the connecting pipe 35 is connected to the input end of the absorption tower 30, the connecting pipe 35 is provided with a second safety valve 351 and a third explosion-proof pressure gauge 352, and the third explosion-proof pressure gauge 352 is connected in parallel with the second safety valve 351. When the air pressure of the first input pipe 3 is too high, a part of the nitrogen can be discharged into the absorption tower 30 through the third explosion-proof pressure gauge 352. The third explosion-proof pressure gauge 352 can be a PIXA gauge, and the second safety valve 351 can be a PSV gauge.

Claims

1. A chemical material delivery system, characterized in that: The invention comprises a discharge station module (1), a fan (2) and an absorption tower (30), wherein the discharge station module (1) comprises a receiving chamber (11), wherein a discharge kettle (12) is arranged in the receiving chamber (11), wherein a door (111) capable of opening the receiving chamber (11) for allowing a person to enter is arranged on a side wall of the receiving chamber (11), wherein a first input pipe (3) for inputting nitrogen into the discharge kettle (12) and an output pipe (4) for outputting materials in the discharge kettle (12) are connected to the top of the discharge kettle (12), and wherein a first input pipe (3) for inputting nitrogen into the discharge kettle (12) and an output pipe (4) for outputting materials in the discharge kettle (12) are connected to the side wall of the receiving chamber (11). An exhaust pipe (5) capable of extracting indoor gas, the output end of the exhaust pipe (5) being connected to the air inlet end of the fan (2), the air outlet end of the fan (2) being connected to the input end of the absorption tower (30) through a pipeline, a combustible gas detector (6) for detecting the concentration of combustible gas in the receiving chamber (11) being provided on the inner wall of the receiving chamber (11), and the chemical material conveying system further comprising a control unit (7) for receiving a signal from the combustible gas detector (6) and controlling the fan (2) to start exhausting the receiving chamber (11).

2. A chemical material delivery system according to claim 1, characterized in that: The combustible gas detector (6) and the input end of the exhaust pipe (5) are both arranged at the lower part of the side wall of the accommodating chamber (11).

3. A chemical material delivery system according to claim 2, characterized in that: A smoke detector (81) and a dry powder automatic fire extinguisher (82) are also provided on the inner top of the accommodation chamber (11); the smoke detector (81) is connected to the control unit (7), and the control unit (7) is connected to the dry powder automatic fire extinguisher (82).

4. A chemical material delivery system according to claim 1, characterized in that: An HCL detector (83) for detecting the HCL concentration in the air in the containing chamber (11) is provided on the inner side wall of the containing chamber (11), and the HCL detector is connected to the control unit (7).

5. A chemical material delivery system according to claim 4, characterized in that: The HCL detector is arranged at the lower part of the side wall of the containing chamber (11).

6. A chemical material delivery system according to claim 1, characterized in that: An alarm (84) is also provided in the accommodation chamber (11), and the alarm (84) is connected to the control unit (7).

7. A chemical material delivery system according to claim 1, characterized in that: The output end of the output pipe (4) is connected to a hydrolysis kettle (91) and a treatment kettle (92), and a first automatic valve (41) for controlling the on-off of the output pipe (4) is also provided on the output pipe (4).

8. A chemical material delivery system according to claim 7, characterized in that: The first input pipe (3) is provided with a second input pipe (31) for inputting nitrogen into the hydrolysis kettle (91) and the treatment kettle (92), and the second input pipe (31) is also provided with a second automatic valve (32) for controlling the on-off thereof.

9. A chemical material delivery system according to claim 1, characterized in that: The unloading kettle (12) is provided with a first explosion-proof pressure gauge (121) and a first safety valve (122) for detecting the gas pressure in the kettle.

10. A chemical material delivery system according to claim 1, characterized in that: The first input pipe (3) is provided with a PCV valve (33) and a second explosion-proof pressure gauge (34); the first input pipe (3) is connected to a connecting pipe (35); the output end of the connecting pipe (35) is connected to the input end of the absorption tower (30); the connecting pipe (35) is provided with a second safety valve (351) and a third explosion-proof pressure gauge (352); the third explosion-proof pressure gauge (352) is connected in parallel with the second safety valve (351).

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